function f1() {
  console.log('f1');
  setTimeout(() => {
    console.log('1秒');
  }, 1000)
}

function f2() {
  console.log('f2');
  setTimeout(() => {
    console.log('100豪秒');
  }, 100)
}

function f3() {
  console.log('f3');
  setTimeout(() => {
    console.log('500豪秒');
  }, 500)
}
// f1()
// f2()
// f3()
async function get1() {
  await f1()
  await f2()
  await f3()
}
get1()